Are you noticing blue veins appearing on your legs? The appearance of blue veins can indicate many things — they can be spider veins, reticular veins, or varicose veins. In some cases, blue veins can be a purely cosmetic issue not linked to any major health concerns. In other cases, blue veins in your legs can be caused by chronic venous insufficiency, a dangerous medical condition wherein the accumulation of blood in leg veins leads to dilated veins, which can lead to spider veins and varicose veins.

Long Island Vein Treatment takes a holistic, comprehensive approach to the diagnosis and treatment of vein conditions. Instead of simply looking at your veins and providing cosmetic solutions, as many vein doctors and medical spas do, we investigate the root cause. Our board-certified vein doctors administer ultrasound tests to visualize the direction of blood flow in your leg veins, determine if you have chronic venous insufficiency, and curate a personalized treatment plan consisting of minimally invasive vein treatments.

You can find our medical centers for vein treatment throughout Long Island, including West Islip, Jericho, Port Jefferson, and Hampton Bays. Please schedule an appointment at your nearest medical center for vein treatment in Long Island.

Why am I getting blue veins on my legs? Discover the causes of blue veins on your legs and advanced treatments at Long Island Vein Treatment.

What Blue Veins Can Possibly Be

As mentioned before, blue veins on your legs can take many different forms. Generally speaking, unhealthy leg veins are categorized into three main types: spider veins, reticular veins, and varicose veins. Each type has distinct characteristics.

Spider Veins

Spider veins, also known as telangiectasia or superficial veins, are the smallest of the visible veins. They appear close to the skin’s surface and are often red, blue, or purple in color. Spider veins get their name from their web-like or branching pattern, resembling the legs of a spider. Spider veins are usually less than 1mm in diameter, and they’re often only cosmetic. In some cases, spider veins can cause mild discomfort, and they can be symptomatic of underlying vein disease, but they’re not dangerous in and of themselves.

Reticular Veins

Reticular veins are slightly larger than spider veins but smaller than varicose veins — usually between 1mm to 3mm in diameter. They often appear as blue or green veins that are more prominent than spider veins but not as bulging as varicose veins. Reticular veins are situated deeper within the skin than spider veins and have a bluish or greenish color. Reticular veins are typically caused by increased pressure in the veins.

Varicose Veins

Varicose veins are the largest of the visible veins. They are often bulging, twisted, and blue or dark purple in color. Patients often describe varicose veins as rope-like knots of twisted and tangled blood vessels that look like tree branches. They’re usually caused when the leg veins become weak or damaged, allowing blood to flow backward and pool in the veins. This leads to the enlargement and distortion of the affected veins.

Why Are You Getting Blue Veins on Your Legs?

Prolonged Sitting or Standing

One of the primary factors contributing to the development of varicose veins and spider veins is prolonged sitting or standing. When you spend long hours in these positions, especially if your work or lifestyle demands it, your leg muscles may not contract as frequently as they should. This lack of muscle movement makes it difficult for blood to flow efficiently from your legs back to your heart, causing it to pool in your veins and potentially lead to vein issues.

Weakening of Blood Vessels

As we age, our blood vessels naturally lose their elasticity and become weaker. Healthy veins have one-way valves that allow blood to flow toward the heart and prevent it from flowing backward due to gravity. When the vein valves malfunction or collapse due to age-related changes, blood flows backward and accumulates in the affected areas. The weakened veins are less effective at pushing blood back up towards the heart. This can result in the development of varicose veins, reticular veins, or spider veins.

Deep Vein Thrombosis (DVT)

In some cases, varicose veins may be a symptom of a more serious condition known as deep vein thrombosis (DVT). DVT occurs when a blood clot forms in one of the deep veins of the body, often in the legs. This can obstruct blood flow, leading to the enlargement of superficial veins like varicose veins. In severe cases, the blood clots can travel into the lungs, leading to a potentially fatal condition known as a pulmonary embolism.

Chronic Venous Insufficiency (CVI)

Chronic venous insufficiency is often the root cause of most vein problems. However, vein disease is extremely underdiagnosed because its early signs and symptoms — leg heaviness, leg aching, leg pain, restless leg syndrome, and leg cramps — are misattributed to aging and exhaustion. In CVI, the valves in the leg veins are damaged, causing blood to flow in the wrong direction and accumulate in the veins. The continued accumulation of blood in leg veins leads to vascular dilation, eventually causing varicose veins and spider veins.

Other Factors That Increase The Risk Of Blue Veins:

  • Family history of venous insufficiency and vein problems
  • Aging, since the vein valves weaken as you grow older
  • Gender (more common in women than men)
  • Obesity, since the additional weight weakens veins
  • Prolonged sitting or standing, since that leads to blood accumulation in leg veins
  • Pregnancy, since the weight of the fetus pushes against the veins
  • Hormonal changes (e.g., birth control pills, hormone replacement therapy)
  • History of deep vein thrombosis (DVT), since that can damage the veins
  • Lack of physical activity and exercise

Common Symptoms Of Varicose Veins:

  • Visible bulging or twisted veins
  • Pain or aching in the legs
  • Swelling, particularly at the ankles and lower legs
  • Cramping or throbbing in the legs
  • Itching or burning sensation over the veins
  • Skin discoloration near the affected veins
  • Skin ulcers (in severe cases)

It’s worth noting that not everyone with varicose veins experiences pain or discomfort. Some individuals may seek treatment solely for cosmetic reasons, while others may be motivated by physical symptoms. However, there’s no real way to know if your varicose veins are cosmetic or symptomatic of underlying venous insufficiency without a proper diagnosis. That’s why you must always consult a board-certified vein doctor who can administer duplex ultrasound tests, determine the root cause, and curate a personalized treatment plan.

Advanced Minimally Invasive Vein Treatments at Long Island Vein Treatment


Sclerotherapy is a minimally invasive treatment for spider veins and small varicose veins. It’s a purely cosmetic treatment, so it can remove visible spider veins but not address underlying vein disease. During this procedure, a special solution is injected directly into the affected vein, causing it to collapse and eventually fade away. Sclerotherapy is a minimally invasive outpatient procedure that typically takes less than an hour and requires no downtime.

Endovenous Laser Ablation (EVLA)

Endovenous laser ablation is a state-of-the-art technique for treating larger varicose veins. It involves using laser energy to heat and seal the affected vein, diverting blood flow to healthier veins. The vein doctor makes a small incision on the skin’s surface to insert a catheter that releases laser energy to collapse the diseased saphenous vein. This allows blood to flow into healthier leg veins, restoring optimal blood circulation.

Radiofrequency Ablation (RFA)

Radiofrequency ablation is another minimally invasive procedure that uses heat energy to close off varicose veins. During the procedure, the vein doctor makes a small incision on the skin’s surface under local anesthesia, following which a catheter is used to channel thermal energy to burn the diseased vein. The accumulated blood freely reroutes into healthier leg veins. RFA can be performed in an outpatient setting, allowing you to return to normal activities immediately.


VenaSeal is a revolutionary treatment that uses a medical adhesive to seal varicose veins shut. During the procedure, the vein doctor makes a small incision on the skin’s surface to insert a catheter that delivers a medical-grade adhesive into the diseased vein, sealing its walls shut. VenaSeal offers a rapid recovery and is an excellent choice for those with needle phobias. Furthermore, since VenaSeal doesn’t involve any heat, the risk of nerve injury is minimal.

Ambulatory Phlebectomy

Ambulatory phlebectomy is a surgical technique used to remove bulging varicose veins through tiny incisions. During the procedure, the vein doctor makes small incisions on the skin’s surface and uses hook-like tools to extract the unwanted superficial varicose veins. This procedure is minimally invasive and leaves minimal scarring. It’s often used for larger varicose veins, and it provides immediate cosmetic improvements. However, ambulatory phlebectomy can’t treat underlying chronic venous insufficiency, so it’s performed after treating underlying vein disease.

Our Approach: Diagnosis Before Treatment

At Long Island Vein Treatment, we understand that every patient is unique, and there is no one-size-fits-all solution to vein issues. That’s why we prioritize an accurate diagnosis before recommending any treatment. Our experienced vein doctors use duplex ultrasound, a non-invasive imaging technique, to assess the condition of your veins and identify the underlying causes of your varicose veins or spider veins.

Locations Conveniently Serving Long Island

To make access to our advanced vein treatments even more convenient for you, Long Island Vein Treatment has multiple locations across Long Island. Here are our key locations.

South Shore: 500 Montauk Highway, Suite G, West Islip

Our South Shore clinic is strategically located right on the border of Suffolk County and Nassau County. It’s easily accessible via the southern state parkway and is situated near the Bergen Point Golf Course and the Southward Ho Country Club.

North Shore: 350 Jericho Turnpike, Suite 1A, Jericho

The North Shore location is situated off the Long Island Expressway and the Northern State Parkway. It’s extremely accessible to residents on the north shore of the island.

The Hamptons: 225 W Montauk Highway, Suite 3, Hampton Bays

If you reside in or near the Hamptons, our center for vein treatment at Hampton Bays is the perfect choice. Located in partnership with MDCS Dermatology, we offer ample parking and easy access for patients from neighboring towns.

Port Jefferson Area: 70 North Country Road, Suite 201

Our Port Jefferson clinic is situated near Port Jefferson Station, directly across the street from Mather Hospital, making it a convenient option for residents in this area.

Please schedule an appointment at your nearest center for vein treatment in Long Island.